#!/bin/bash

APP_NAME="mall-goods"
APP_DIR="/root/apps/${APP_NAME}"
JAR_NAME="${APP_NAME}-server-1.0.0.jar"
DEPLOY_FILE_DIR="/root/apps/jars"
JAVA_HOME="/root/local/java/dragonwell-17.0.12.0.13+7-GA"
JAVA_OPTS="-Xms256m -Xmx256m -Dfile.encoding=utf-8"

#检查程序是否在运行
is_exist(){
  pid=`ps -ef|grep ${JAR_NAME}|grep -v grep|awk '{print $2}'`
  #如果不存在返回1，存在返回0
  if [ -z "${pid}" ]; then
   return 1
  else
    return 0
  fi
}

#启动方法
start(){
  is_exist
  if [ $? -eq 0 ]; then
    echo "${JAR_NAME} is already running. pid=${pid}"
  else
    nohup ${JAVA_HOME}/bin/java ${JAVA_OPTS} -jar ${APP_DIR}/${JAR_NAME} >> ${APP_DIR}/console.log  2>&1 &
    is_exist
    if [ $? -eq 0 ]; then
      echo "${JAR_NAME} is running success. pid=${pid}"
    fi
  fi
}

#停止方法
stop(){
  is_exist
  if [ $? -eq "0" ]; then
    kill -9 $pid
    is_exist
    if [ $? -eq 0 ]; then
      echo "${JAR_NAME} still in the running. pid=${pid}"
    else
      echo "${JAR_NAME} has stopped running."
    fi
  else
    echo "${JAR_NAME} is not running"
  fi
}

#输出运行状态
status(){
  is_exist
  if [ $? -eq "0" ]; then
    echo "${JAR_NAME} is running. Pid is ${pid}"
  else
    echo "${JAR_NAME} is NOT running."
  fi
}

#重启
restart(){
  stop
  start
}

#部署
deploy(){
  stop
  mv -f ${DEPLOY_FILE_DIR}/${JAR_NAME} ${APP_DIR}
  start
}

#根据输入参数，选择执行对应方法，不输入则执行使用说明
case "$1" in
  "start")
    start
    ;;
  "stop")
    stop
    ;;
  "status")
    status
    ;;
  "restart")
    restart
    ;;
  "deploy")
    deploy
    ;;
  *)
    usage
    ;;
esac